| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake hose which buldges |3.2.B4| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Brake caliper inadequately mounted and braking performance affected Both bolts missing (1.1.16 (c) (ii)) | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Registration plate issues | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Inner Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Speedo/rev counter assembly. |6.1.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Brake hose damaged | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |